An 18-year-old man has died after he came off his 125 cc scooter in the Scottish Borders.
It happened at about 11:35 am on Saturday on a road between Ayton to Reston.
The man died at the scene.
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The historic event always takes place on the last Friday in July.
Early enquiries suggest the men may have taken the drug Blue Valium. Two of them remain in hospital with breathing problems.
More than 8,000 people are expected to attend over the three day event, which starts at 7pm tonight.